Double-walled vessel.



unw se MAX NEUNER. CHARLOTTENBURG, GERMANY, ASSXGN COMPANY, OF BROOKLYN, NE 1 D!) L LL Specification 0t" Letters Pet-sit.

Patented J'si'i. 1.2, 190?.

Application filed June 27, 25%. .Jeriei He. tsetse.

To all whom it may concern. 7

Be it known that 1, MAX Neurons, 2. subject of the German Emperor and resident of Charlottenhurg, near Berlin, Germany, have'invented a new and useful Improve ment in Double-Walled Vessels, of which the following is a specification.

This invention consists in s double walled vessel comprising inner and outer wells united with each other only at the mouth of the vessel and inclo'sing between them a. rarefied space, a, stiffening cord of nonheat-conducting material bein spirally an ranged between the inner mi outer walls for holding the inner wellspeced from the outer wall.

In the aceompanyin drawings, Figure 1 represents a, double we led vessel in vertical central section with the spiral stiffening cord applied thereto, and Fig. 2 1s :1 section taken in the lane of the line A-A of Fig. 1 looking in tlie direction of the arrows.

The outer wall of the vessel is denoted by l, the inner wall by 2 and the rarefied space between the inner and outer walls by 3. These inner and outerwaiis are united with each other oniy et the mouth of thevessel.

A stiffening cord 4 13 s lrall arranged. he-

tween the inn one outer walls for homing the inner wall s'oeee-d from the outer welt at the mouth of the vessel end ihclosing between them it rarefied specs, and e stiflcm iri'g cord of non-heet-conducting materiel spirally arranged between the inner and outer wells.

In testimony, thet 7. claim the foregoing'eo as invention, 1 have signed my name in presence of two witnesses, the Sllitl'l day of June 1908.

MAX N EUNER. Witnesses:

Hiemsroe RAUenrroL'r, Wows AR HAUPT. 

